public async Task <IDataResult <ICollection <Student> > > GetAllAsync()
{
var students = await _studentDal.GetListAsync();
if (students == null)
{
return(new ErrorDataResult <ICollection <Student> >(new List <Student>(), HttpStatusCode.NotFound));
}
return(new SuccessfulDataResult <ICollection <Student> >(students, HttpStatusCode.OK));
}
